Improvement in hinges



( @www4 N. PETERS. PHOTO-UTHOGIAPHER. WASMNGTON. yD. C,

UNITED STATES PATENT OFFICE.

IMPROVEMENT IN HINGES.

Specification forming part of Letters Patent No. 50,566, dated October 24, 18'35.

To all whom fit may concern:

Be it known that I, S. R. DUMMER, of the city, county, and State of New York, have iuvented a new and useful Improvement in Hinges; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

The present invent-ion relates to certain new and useful improvements in hinges, particularly adapted to-those used for hanging blinds and shutters to and upon dwelling-houses, buildings, &c., and therefore in the following description will be explained, with reference thereto, although they can be readily applied to hinges used for other and various purposes, and it has for its principal object the locking or fastening of the blind when in a closed or open position, or only partially open, by means of the hinge itself, without necessitating the use of a separate and distinct device therefor, as has heretofore generally been the case. These results I secure by the present invention in an extremely novel and peculiarlysimple manner, as will be now fully described.

In the accompanying plate of drawings, Figure lis a perspective view of a hinge made according to my improvements, showing it in an open position; Fig. 2, a view of the outside of one of the leaves of the hinge, showing it closed upon the other leaf, and Fig. 3 a horizontal section taken in the plane of the line :v Fig. 2, showing the hinge closed, and its application to a window and blind in red.

A in the drawings represents a hinge, made of brass, iron, or any of the ordinary metals or materials used, and of any desired size and style, having apertures b b l) through each of its leaves or sections c and d, for the insertion of screwsor other suitable devices for securing them respectively to a blind, shutter, or any other desired device, and to the sides of the window-frame, each leaf also having upon its outside face, either attached to or forming a part of them, a projecting plate,j`, for more securely holding the leaves to their respective devices, as plainly shown in Fig. The leaves of the hinge are pivoted together as in ordinary hinges, the leaf d, or that secured to il il it the blind, swinging by its hollow butt g upon the pin or stud h of the butt l of the leaf secured to the side of the window. Around this butt l, and projecting therefrom in a horizontal plane, or at right angles tothe direction of the same, is formed a semicircularshaped shoulder plate ordisk, m, extending from the inner surface of the leat`c,or nearly so, around its butt, the swinging leaf being cut away so as to freely swing around the disk, as plainly seen in Fig. l. In this shoulder-plate, and for its entire thickness extending from its periphery toward the center pivot-pill of the hinge, are cut two notches, n and o, one, n, in the same line with the surfacep of the fixed leaf, and the other at the point q, between the first, fn, and the farther or outer end of the projecting plate or disk m.

r is an angular-shaped latch-lever, hung at its upper end, s, upon a fixed pin, t, of the swinging leaf of the hinge, and extending along and across upon the said leaf to its outer edge, u, where a handle-piece, v, is secured, for convenience in raising it, the latch falling by its own weight and moving in the cut-out portion fw ofthe hinge-leaf, making it ush with the face of the same. Ihe latch moves under a guide, y, of the butt-cylinder of the hinge-leaf, which prevent-s its flying out from the hinge, keeping it always in contact therewith. This latch swings toward the turningpoint of the hinge, and, as the hinge is either swung open or closed to open or close the blind, will necessarily engage with the notches in the butt-disk, hereinbefore referred to, consequently preventing the hinge from turning 4until such latch is disengaged therefrom by lifting it a proper distance therefor, the latch, when the hinge is sufficiently turned to fully Open the blind, preventing its closing by its abutment against the end ofthe notched disk until relieved therefrom by being raised.

By means of this construction ofthe hinge, with its latch for locking it either open or closed or partially open, it is obvious the blind can thus be held in any position, according to the wishes ofthe person, and that by increasing the number of notches in the butt-disk a variety of positions can be obtained, to suit the desires of all; but I do notdeem it best to have many, as they are not necessary or reqyt ri pnisite, and, besides, serve to weaken the butt,

and thus seriously affect the efficiency and strength of the hinge for its successful use.

In lieu of forming the disk with its notches about the hinge-butt, as described, for the latch to interlock with, the notches may be formed directly in the butt itself, increasing it, however, slightly in size over the upper butt; and there are many other manifest variations which can be made in the hinge other than that specified, as Well, also, as in its latch and arrangement, and therefore I do not intend to 

